The Wikimedia Foundation has issued a statement supporting Russian Wikipedia volunteers after a censorship demand from internet regulators. On Tuesday, tech and communications regulator Roskomnadzor threatened to block Wikipedia over the Russian-language page covering Russia’s invasion of Ukraine, claiming it contained “false messages” about war casualties and the effects of economic sanctions, among other things.

“On March 1st 2022 the Wikimedia Foundation received a Russian government demand to remove content related to the unprovoked invasion of Ukraine posted by volunteer contributors to Russian Wikipedia,” reads the statement sent to The Verge via email. “As ever, Wikipedia is an important source of reliable, factual information in this crisis. In recognition of this important role, we will not back down in the face of efforts to censor and intimidate members of our movement. We stand by our mission to deliver free knowledge to the world.”